Professional Team

Home Team

As a unified team, we meticulously craft intangible contributions that translate into tangible outcomes, delivering optimal results for our clients with a discernible impact

John Gadzi

Managing Director

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Delali Ayikoe

Associate

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Vincent Kombat

Associate

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Harriet Bio

Analyst

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Jennifer Aggrey

Analyst

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Mamle Kwao

Analyst

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Othniel Tankam

Analyst

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Hukailatu Sumani

Customer Serv. & Admin Exec

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John Gadzi

Managing Director

John Gadzi has over 20 years banking experience across a number of sectors and regions globally. He is responsible for advisory and investing activities of Sentinel across Africa. He has an extensive track record of advising large corporates, investors and families on various landmark transactions including M&A, fund raising, market entry and divestitures amongst others. Prior to Sentinel, John was a Managing Partner at IC Securities, a pan-African investment bank, and was responsible for its investment banking activities across the continent. John also worked with Goldman, Sachs & Co., Lucent Technologies, Inc. and Salomon Smith Barney, Inc in New York. He holds a Bachelor of Science in Finance, Magna Cum Laude, from the University of Maryland and an MBA, from the Wharton School, University of Pennsylvania.

Delali Ayikoe

Associate

Responsible for financial modelling, valuation exercises, research, due diligence and preparation of key marketing materials for deal origination and execution. Formerly, a premium administrator with First Insurance Company in Ghana assisting the finance department with premium collections and allocations. Holds a BSc. in Accounting, from University of Professional Studies, Accra and an MSc. in Investments and Finance from Kwame Nkrumah University of Science and Technology

Vincent Kombat

Associate

Responsible for financial modelling, valuation exercises, research, due diligence and preparation of key marketing materials for deal origination and execution. Formerly, a business analyst with Link Investment Group, supporting the provision of credit and fintech services to SMEs in Ghana and Nigeria. Worked as a finance intern at Kosmos Energy Ghana and an assurance intern at Ernst and Young Ghana. Holds a BSc. in Business Administration, from University of Ghana and a chartered accountant certificate from the Institute of Chartered Accountants Ghana (ICAG)

Harriet Bio

Analyst

Responsible for conducting industry research and market studies, development of industry decks and preparation of key marketing materials for deal origination and execution. Formerly Chief of Staff to the CEO and Founder of BlackSisters in STEM, an EdTech platform specialising in Finance and STEM training, contributing to strategic growth initiatives and operations
Previously worked as a business analyst with Herrnhut Corporation, delivering research and operational support for consulting clients. Holds a BSc. in Business Administration from University of Ghana

Jennifer Aggrey

Analyst

Responsible for conducting industry research and market studies, development of industry decks and preparation of key marketing materials for deal origination and execution. Previously worked with Constant Capital (Ghana) Limited as an Investment Banking Analyst, assisting with data management, market research and reports. Interned with diiVe Consulting as a Solutions Development Lead and Ecobank Ghana Limited as a Consumer Banking Intern. Holds a BSc in Business Administration from Ashesi University

Mamle Kwao

Analyst

Responsible for conducting industry research and market studies, development of industry decks and preparation of key marketing materials for deal origination and execution. Previously worked as an Economic Analyst at MCC Economics and Finance Abu Dhabi where she specialised in regulatory inefficiencies within the financial services and energy sector, with a primary focus on developed markets. Holds a BA in Economics from New York University Abu Dhabi

Othniel Tankam

Analyst

Responsible for conducting industry research and market studies, development of industry decks and preparation of key marketing materials for deal origination and execution. Previously worked at OMNIBSIC assisting the finance team with market research and competitor analysis for the development of new products for individual and SME clients. Holds a BSc in Business Administration from University of Ghana

Hukailatu Sumani

Customer Service and Administrative Executive

Responsible for managing customer service, administrative operations, and ensuring seamless HR and client service support. Formerly a Customer Service Executive at 1981 Clothing’s, focusing on customer relationship management and maintaining accurate financial transactions. Worked as an Administrative Intern at Graft Foundation, where responsibilities included coordinating projects and managing patient communications. Additionally, served as a Teaching & Research Assistant at the University of Professional Studies, providing academic support and conducting research. Holds a Bachelor of Science in Business Administration from the University of Ghana.